Table 3.
Dental utilization classification and their associated CDT-3 treatment codesa
| Category | Code Type | CDT-3 codes |
| Periodontal Treatmentb | CDT-3 | D4000 – D4999 |
| Periodontitis Codes | CDT-3 | D4220, D4240, D4245, D4260, D4263, D4264, D4266, D4267, D4268, D4274, D4341, D4381 |
| Gingivitis Codes | CDT-3 | All other D4000–D4999 codes |
| Dental Maintenance Services (DMS)c | CDT-3 | D0120, D0150, D0180, D0210–0470, D1110–1205, D1330, D0140, D0160, D0170, D0472, D1310–1320, D1351 |
| All Other Dental Servicesd | CDT-3 | D5000–9974, D0473–0999, D1352–3999 |
a CDT-3: Current Dental Terminology: Users Manual/American Dental Association. Version 2000, Chicago, Ill.: American Dental Association, 1999
bIncludes all codes related to periodontal treatment including scaling and root planing and periodontal surgical procedures
cIncludes examination and preventative treatment
dIncludes restorative and prosthetic treatment